Air conditioner for vehicle, improved for frost deposition

Details Air conditioner for vehicle, improved for frost deposition Air conditioner for vehicle, improved for frost deposition

1996-09-19

1998-01-06

Tanner, Harry B.

Refrigeration

Automatic control

Preventing, removing or handling atmospheric condensate

62186, 62140, 623245, 236 493, B60H 100

Patent

active

057042179

ABSTRACT:
According to the present invention, in a heating operation where a heating indoor heat exchanger function as a condenser and an outdoor heat exchanger functions as an evaporator, an air amount supplied by a blower is reduced when a predetermined amount of frost is or may be deposited on the outdoor heat exchanger in an outside air introduction mode where an outside air is supplied into a passenger compartment. Accordingly, a heating load is reduced to thereby reduce an endothermic amount in the outdoor heat exchanger. As a result, a frost deposition speed is reduced, and a deposited frost limit is increased, thereby extending a heating operation period.

REFERENCES:
patent: 4257795 (1981-03-01), Shaw
patent: 4350021 (1982-09-01), Lundstrom
patent: 5170635 (1992-12-01), Wruck et al.
patent: 5186016 (1993-02-01), Nigo

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